make Authorization header check case-insensitive to comply with RFC 2616 4.2
make Authorization header check case-insensitive to comply with RFC 2616
4.2

improbable-io/grpc-gateway,grpc-ecosystem/grpc-gateway,improbable-io/grpc-gateway,ilius/grpc-gateway,Lantame/grpc-gateway,Lantame/grpc-gateway,gengo/grpc-gateway,ilius/grpc-gateway,tmc/grpc-gateway,gengo/grpc-gateway,ilius/grpc-gateway,tmc/grpc-gateway